.pdf — Multiple files supported — Max 250MB each
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Tools loved by thousands of users every day
Compress PDF is a free online tool from HuntPDF. Reduce PDF file size with Ghostscript-powered compression. Multiple files supported. Drag & drop, browse files. Free, no signup. You work straight from your browser — there is nothing to install, no account to create and no watermark on the result. Upload a file up to 250MB, the processing happens on our secure servers, and your document is deleted automatically once you have your result.
Drag and drop the PDF you want to process, or click to browse for it.
Pick the option that suits the job. The defaults are tuned to give a good result without you having to think about it.
Your optimised PDF is ready to download in seconds — no watermark, no signup.
No signup, no watermark and no daily cap. Use it as often as you need.
Files travel over an encrypted connection and are deleted the moment your download finishes.
Runs in any modern browser on Windows, macOS, Linux, Android and iOS.
Most files are processed in a few seconds on our servers, not your laptop.
Compress PDF reduces the file size of a PDF so it's easier to email, upload or store. Most of the weight in a PDF comes from oversized images, so that's where the savings are found — the text itself is left alone.
Upload your file using the box above — drag it in, browse for it, or bring it in from your cloud storage. A preview appears so you can check you've picked the right file. Run Compress PDF, then download the result. You can rename it before you save it.
Yes. The file you send to Compress PDF travels over an encrypted HTTPS connection and is processed automatically on our servers. It is never made public, never shared with anyone, and nobody reads it.
No. Your upload is deleted the moment Compress PDF finishes with it, and the file it produces is removed as soon as you have downloaded it, or when you upload another file, or when you close the page. Nothing is kept, and nothing is used to train anything.
Text stays perfectly sharp, because it's stored as vectors rather than pixels. Images are where the size is saved, and the default setting is tuned so the difference isn't visible on screen or in print.
Yes. Compress PDF runs entirely in your browser, so it works on any modern phone or tablet — iPhone, iPad or Android — with nothing to install. You can upload straight from your device or from your cloud storage.
Yes. The file Compress PDF gives you back keeps the name of the file you uploaded by default. If you'd rather call it something else, edit the name in the field next to the download button before you save it.
No. There is nothing to download, install or sign up for — Compress PDF runs in your browser and does the work on our servers, so it behaves the same on Windows, macOS, Linux, Android and iOS.
Most files are finished in a few seconds. A large or page-heavy file takes a little longer, because Compress PDF runs on our servers rather than on your device — but you won't be waiting around. You can upload files up to 250MB.
Yes. Compress PDF is free, with no signup, no watermark on the result and no daily limit for normal use.